title: [Analysis of metribuzin and its metabolites in livestock products and seafoods by liquid chromatography-tandem mass spectrometry].
abstract: A method for simultaneous determination of metribuzin (MET) and three metribuzin metabolites in livestock products and seafoods by liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed. MET and its metabolites were extracted from a sample with acetonitrile, followed by InertSepC18 and BondElut SAX cartridge cleanup. The LC separation was performed on a C18 column using 0.01 mol/L ammonium formate-acetonitrile-methanol (70 :21 : 9) as the mobile phase and MS detection with both positive and negative ion electrospray ionization. The mean recoveries from 10 livestock products and seafoods were generally >60%, and the relative standard deviations were <20%
authors.affiliation: Kanagawa Prefectural Institute of Public Health, Chigasaki-shi, Kanagawa, Japan. kai.96jc@pref.kanagawa.jp
authors.forename: Shigemi
authors.initials: S
authors.lastname: Kai
authors.forename: Takeshi
authors.initials: T
authors.lastname: Akaboshi
authors.forename: Masumi
authors.initials: M
authors.lastname: Waki
authors.forename: Teruhisa
authors.initials: T
authors.lastname: Fuzimaki
authors.forename: Hideko
authors.initials: H
authors.lastname: Kanazawa
mesh_terms: D000818:Animals; D002645:Chickens; D002853:Chromatography, Liquid / Q000379:methods*; D003611:Dairy Products / Q000032:analysis; D004531:Eggs / Q000032:analysis; D008460:Meat / Q000032:analysis*; D017747:Seafood / Q000032:analysis*; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry / Q000379:methods*; D014227:Triazines / Q000032:analysis* / Q000378:metabolism
chemical_list: D014227:Triazines; C009235:metribuzin